Optical constants of OHARA - LAH (Lanthanum, high-index)
S-LAH52Q
Wavelength:
µm
(0.340–2.400)
Complex refractive index (n+ik)
n
k
LogX
LogY
eV
Derived optical constants
Dispersion formula
$$n^2-1=\frac{1.91082318λ^2}{λ^2-0.0103565352}+\frac{0.239854589λ^2}{λ^2-0.0413805081}+\frac{1.16159733λ^2}{λ^2-96.60373}$$Conditions & Spec sheet
n_is_absolute: false wavelength_is_vacuum: false temperature: 25.0 °C thermal_dispersion: - type: "Schott formula" coefficients: 1.08e-05 1.21e-08 -1.6e-11 8.62e-07 8.63e-10 0.222 nd: 1.799520 Vd: 42.239506 density: 4.47 g/cm3 thermal_expansion: - temperature_range: -30 70 °C coefficient: 6e-06 K-1 dPgF: -0.0056 climatic_resistance: 2.0 acid_resistance: 52.2 phosphate_resistance: 2.0
Comments
Recommended
References
OHARA Zemax catalog 2017-11-30 (obtained from http://www.ohara-inc.co.jp)
See also OHARA glass data sheets